Hi,
We usually would advice applying steroid creams till the rash has cleared. When the rash resolves, it may leave a brownish pigmentation and this is termed post-inflammatory hyperpigmentation. This pigmentation will gradually resolve on it own. You should stop the topical steroid application at this stage.
Prolonged use of topical steriods can lead to thinning of the skin and skin atrophy. Striae or stretch marks can develop with overuse of topical steroids. The risk of skin thinning depends on the strength, amount and frequency of application of steroids. The site of application is also important as areas where the skin is thin such as the face and flexures are more susceptible to the thinning effects of steroids. Strong steroids should be avoided in these areas.
You should therefore be aware of the strength of the topical steroids that you are using and avoid overuse of strong steroids. You can discuss this further with your doctor.
